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The best liquid lawn fertilisers in comparison

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Last updated on 11.04.2025

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Miracle-Gro Water Soluble Lawn Food, 1 kg

Miracle-Gro

36% off

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9,9

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Note- Packaging May Vary
Easy to apply using the Miracle-Gro Feeder or mixing in a watering can

£ 6.99

£ 8.73

£ 9.00

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Richard Jackson Flower Power Premium Lawn Magic, Covers 500m, Lawn Feed for Gardens, Greens the Grass & Strengthens the Roots (5L)

Flower Power

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9,8

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PROFESSIONAL INSPIRED FORMULA Lawn Magic can be used all year round as long as the ground temperature is above 5 C. No need to buy any other specialist feeds for different seasons
FROM RICHARD JACKSON S GARDEN Contains added seaweed extract for bio-stimulant benefits and natural sugars to build disease resistance. The professional secret of green, healthy, great looking lawns
UNIQUE DOUBLE ACTION Lawn Magic does two jobs in one. It greens the grass and strengthens the roots. It s the lawn feed used and trusted for many years by the professionals

Miracle-Gro EverGreen Fast Green Spray & Feed, Liquid Lawn Food, 1 Litre

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Greens lawns in 24 hours under normal growing conditions
Coverage of up to 100 m sq
Attach to a hose to feed and water the lawn at the same time

Plantworks Ltd Empathy Lawn Feed Liquid Seaweed Stimulant 1L

16% off

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9,7

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EMPATHY SUP LAWN FEED SEAWEED 1L

Multi-Mite 5 Ltr Liquid Seaweed -100% Natural & Organic Concentrate Cold Pressed Plant & Soil Fertiliser, Trees Lawn Veg & House Plants Root or Foliar Feeding

Multi-Mite

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ELIXIR OF LIFE FOR ALL PLANTS IN A BOTTLE - Our Liquid Seaweed is packed full of Carbohydrates, not only do your plants use complex carbs in their structure and as food, it's also a tasty snack for a host of beneficial Microorganisms that help create the perfect ecosystem for your greenery. Supposedly MULTI MITE Liquid Seaweed Concentrate is so powerful that it may even bring plants previously thought dead back to life!
WITH MULTI-MITE SEAWEED SUITABLE FOR ALL PLANTS - you'll unlock the Power of the Sea for your plants! This Dynamite Fertiliser is filled with beneficial nutrients for your beloved botanicals. Whether you're growing yummy veggies, encouraging a tree to grow, trying to get your lawn to look its best, or just want a little boost for your house plants, this MULTI MITE fertiliser is a great choice.
USED BY PROFESSIONALS AND BY US MORTALS - Ideal for every gardener with greenhearts as well as green fingers, MULTI MITE is completely 100% Natural. ZERO thickeners, colourants or other chemical additives in MULTI MITE plant fertiliser, just PURE Seaweed Extract! It's organic nature is one advantage; another is replaceability, seaweed is a Fully Fresh Bed resource. Kiss artificial Chemical Fertilisers and animal-based goodbye and embrace the oceanic goodness of MULTI MITE Seaweed Concentrate!
Please note we are in the process of updating our branding, and for a short period, products may be shipped with our previous branding, see last image, the product is excatly the same and there is nothing to worry about.

Maxicrop POPGS4TL Original Seaweed Extract Organic Plant Growth Stimulant, 2.5L - Natural Seaweed Extract Fertiliser - Boosts Healthy Root Development - Approved for Organic Growing - Plant Nutrition

33% off

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GROWTH STIMULANT A powerful natural plant growth stimulant with added seaweed extract that brings out the best in your plants
SUITABLE FOR Ideal for use on all plants, including flowers, shrubs, trees, fruit and vegetables, in the home, garden, or allotment
IMPROVING AND STRENGTHENING Improves natural plant health and the ability to withstand transplant shock, and environmental stresses, including drought
ORGANIC Approved and certified for organic growing by the Soil Association

Pro-Kleen Lawn Tonic Liquid Iron Sulphate Quality Ferrous Conditioner, Fertiliser, Grass Greener, Turf Hardener | Long-Lasting for a Healthier Looking Garden | Helps Prevent Lawn Disease (5 Litres)

Pro-Kleen

6% off

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Our super concentrate liquid lawn tonic rich in sulphate of iron and extract of seaweed, this lawn tonic encourages strong, healthy grass, Grass will be greener and produce a healthy dense sward, Pro Kleen lawn tonic improves the appearance and quality of lawns. It is also highly effective in turf hardening.
Transforming your grass has never been easier. With our Lawn Tonic you can turn your dull and dying grass into strong and green grass in no time!
Our thoroughly revised, tried and tested formula even helps to prevent lawn disease with its turf hardening qualities. On the back of the bottle are easy to follow instructions. Simply mix the suggested dosage with water and apply to your lawn with a pump sprayer or a watering can and wait for results to appear. It's that easy!
Pro-Kleen Lawn Tonic is extremely easy to use! Simply mix the suggested dosage with water and using a pump sprayer or a watering can, apply it to the grass that you wish to treat
After it has applied, simply wait for the results to appear! It really is that easy

£ 15.93

£ 19.95

£ 23.16

Premium Certified Organic Liquid Seaweed Fertilizer - Concentrated Feed for Plants, Lawns, and Vegetables - The Shropshire Seaweed Company (1L)

11% off

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WIDELY TRUSTED Adored by professionals and amateur gardeners across the country. Find out why growers on TikTok and Instagram love this product.
SUPER SIMPLE Apply as a spray or root feed, whichever is most convenient. Add little and often across the growing season.
MULTIPURPOSE Use it on absolutely everything, from lawns to vegetables, fruits to hedges, hanging baskets, trees, and houseplants.
GREAT VALUE Each litre of concentrate makes up to 500L of feed for your garden.

Westland 20400549 Safelawn Liquid 1L, Green

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9,6

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Made with 100% natural ingredients, this feed contains seaweed that acts as a natural biostimulant and also has a low salt content so it is safe to use on young lawns.
Ideal for use in the summer months for fast greening results, this slow release fertiliser produces long lasting but fast acting results.
Keep in a safe, dry frost-free place away from children, pets and food.
Shake well before use.
Fill watering can or sprayer using 50ml of product per 4.5L of water to cover 5sq.m.

envii SeaFeed Xtra – Organic Seaweed Fertiliser, Liquid Outdoor Plant Food Ideal for all Plants, Lawns, Gardens and House Plants, Rich in Additional Nutrients - 1 Litre Makes up to 500L

envii

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9,4

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Boosts Plant Growth & Crop Yields - Natural Seaweed fertiliser that enhances strong & healthy plant growth, promotes lush foliage, and increases crop yields for thriving plants.
100% Organic & Vegan - Seafeed Xtra is made from natural, sustainably sourced ingredients & certified Organic by OF&G.
User Friendly Design Comes with an easy-to-use bottle featuring a built-in measuring chamber for hassle-free application. One litre of Seafeed Xtra makes up to 500 litres of feed when diluted, suited for all size gardens.

This ranking is created through algorithmic analysis of millions of products tailored specifically to your search. We aim to find the most suitable product for you based on manufacturer information and price. The ranking reflects our opinion and should serve as a good starting point for your purchase. We would like to point out that we have not tested the products ourselves and link to selected online shops and partners from which we may receive compensation.

You might also be interested in these liquid lawn fertilisers.

Dark Green Liquid Lawn Feed - High Nitrogen Lawn Fertiliser for Greener Grass - Child & Pet Friendly - 330m² 1 Litre

HIGH NITROGEN GRASS FEED - A high nitrogen lawn feed with magnesium works within days to repair or revive your lawn with the essential nutrients it needs for a quick green up and outstanding results

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Premium Lawn Feed - Spring Liquid Bio Boost Stimulant with Seaweed & Amino Acids - For New Seed & Existing Grass | Pet & Child Safe - STRIKING LAWNS® (500m² Coverage)

Non-Scorch Formula Cannot over-apply

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Home-APP Miracle-Gro 300157 Indoor Plant Food 48-Spikes, 2.2-Ounce Garden, Lawn, Supply, Maintenance

Contains controlled-release nitrogen for 2-month of continuous feeding

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Greenforce G60105 Green Force Instant Lawn Tonic 2.5 litres

Wash of hard surfaces (kerbing walls tarmac etc) risk of staining

~~£ 21.49~~ free shipping

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Greenforce G60232UK 250ml Lawn Weedkiller of All Broadleaf and Nuisance Weeds, Clear

250ml size

~~£ 12.49~~ free shipping

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Miracle-Gro THICK'R Lawn Seed, Fertilliser & Soil Improver Fertiliser, Brown

Recyclable packaging, contains 40 percent recycled plastic

~~£ 17.99~~ free shipping

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Phostrogen Organic Lawn Food, 3.5kg - Long Lasting Balanced Organic Lawn Feed - for a Thicker, Greener and More Durable Lawn - Growing Season and Autumn Feed - Lawn Nutrition - Garden Care

SOIL IMPROVEMENT This Balanced Feed Also Helps To Improve Soil Quality

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GS Plant Foods Liquid Seaweed Fertiliser, OMRI Listed & Certified Organic Plant Food, Concentrate Liquid Seaweed for Gardens, Lawns & Soil Yields

UNBEATABLE QUALITY Experience the power of nature with our Kelp & Seaweed Fertilizer. OMRI listed for organic gardening, GS Plant Foods Liquid Seaweed Fertiliser offers a pure and natural solution for your garden's needs. Enhancing soil conditions, it promotes robust root growth and greater nutrient absorption for thriving plants. Embrace worry-free gardening as our seaweed plant food is free from harmful chemicals, nurturing your plants and preserving the environment with every application.

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Miracle-Gro All Purpose Water Soluble Plant Food Tub, 2 kg, Brown

The number one selling plant food, trusted by gardeners nationwide that grows plants twice as big as unfed plants

~~£ 15.99~~ free shipping

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Premium SEAWEED Fertiliser 20L | Seaweed liquid Extract Packed with Organic Minerals & Nutrients | Powerful Fertiliser for strong Foliar, Root & Produce Growth | Plant food

An Organic Renewable Liquid Seaweed Fertiliser from SunshineRenewablesUK.

~~£ 54.99~~ free shipping

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Elixir Gardens High Nitrogen Liquid Fertiliser All Season For Fruit, Flowers and Lawns | Various Sizes 1-10L | Produces 625L of liquid feed | 2.5 Litre Bottle

Here at Elixir Gardens we supply to many professional growers as well as a range of garden centres, nurseries and landscaping businesses.

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5KG IRON SULPHATE LAWN FERTILISER, FEED and TONIC. All Round Multi-Purpose Sulphate of Iron Lawn Conditioner, Fertiliser, Grass Greener & Turf Hardener

WHAT IS IRON SULPHATE? Iron Sulphate is Also Commonly Known as Ferrous Sulfate and Sulphate of Iron. Iron Sulphate is Highly Regarded by Keen Gardeners as a Lawn s Best Friend. Both Professional and Domestic Users Apply Iron Sulphate as a Multi-Purpose Lawn Treatment. It Has a Wide Variety of Uses Such as Lawn Greening, Turf Hardening, Worm Casts, and Much More. Iron Sulphate is Renowned for its Use in Creating and Maintaining a Perfect, Strong, Healthy and Lush Green Lawn.

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The best liquid lawn fertilisers in comparison

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